Hydraulic controller



July 7, 1925.

R. O. CROMER HYDRAULIC CONTROLLER Filed Nov. 28, 3 Sheefls-Sheet 1 I l s 7 551i:E1212;H5312:iiliiikiiemiei,

INVENTOR;

ATTORNEYS.

July 1,1925.

R. O. CROMER HYDRAULIC CONTROLLER Filed Nov. 8, 1 3 Sheets-Sheet 2 July 7, 1925. 1,544,892

R. o. CROMER HYDRAULIC CONTROLLER Filed Nov. 28, 192*; 3 Sheets-Sheet 5 IN V EN TOR.

A TTORNEYS.

Patented July 7, 1925.

UNITED STATES v 1,544,892 PATENT OFFICE.

ROSS O. CROMER, OF PIQUA, OHIOASSIGNOR OF TWO-THIRDSQTO STELLA OROMER BAILEY; AND'ONE-THIRD TO FREEMAN HAYES CROMER, OF PIQUA; OHIO, AND

SIDNEY, OHIO, RESPECTIVELY.

HYDRAULIC CONTROLLER.

Application filed November T 0 (ZZZ whom it may concern Be it known that I, Ross O. CROMER, a citizen of the United States, residing at Piqua, in the county of Miami and State of Ohio, have invented certain new and useful Improvements in Hydraulic Controllers, of which the following is a specification, ref-' to provide means for positively operating said controlling valve in order that there may be no difliculty in the valve being properly and positively operated.

Heretofore, there has been occasional difficulty in that the valve member would stick or would not shift sufficiently to positively insure the delivery of the desired kind and amount of water. 1 1 v It is my object to provide a positive shifting means electrically operated and connected with the diaphragm switch of the pump.

Referring to the drawings:

Figure 1 is a side elevation of the complete system with the well and cistern in partial section;

Figure 2 is a side elevation of the valve and electric mechanism for operating the valve; Q V

Figure 8 is an elevation partially in section of the diaphragm switch; and

Figure 4 is a section on the line 4-4 of Figure 2. i p Y Referring to the drawings in detail, 1 is a cistern from which passes a cistern feed pipe 2 to the valve housing 3L 4 is a well through which passes a well water feed pipe -5 to the valve casing 3. 6 is the common outlet line to the pump from the valve casing 3, while 7 designates the pump operated by the usual electric motor 8. The outlet line of the pump is designated 9 which returns to the valve casing 3. 10 is the outlet line from the valve casing 3 and the remainder of the system. To this outlet line is connected a cistern tank 11. A line is also provided with theflfaucets 12.

28, 1924. Serial No. 752,658.

13 designates the outlet line for well water to which is attached the well water tank 14. V

15 generally designates the automatic switch "which has a differential 'of twenty pounds from which pass the two wires 16 and 17 to the respective solenoids 18 and 19 used to operatethe switch 15. 20 designates the valve shifting armature hereinafter to bev described. in more detail.

The solenoid coils 18 and 19 are mounted on the U-shaped laminated magnets 21 which are insulated on the bracket 22 carried by the valve casing 3. i

Referring to the valve mechanism in detail the casing 3 is provided with a tubular interior portion in which slides the member for closing the several ports. This valve member is so arranged that when the pressure decreases on one side of it to twenty pounds it will be shifted so as to open the ports between the pump and the source of supply for that type offluid which has depressed or lowered pressure so thatthe pump will be started by the diaphragm switch and pumping fluid from the low pressure source of supply to boost the pressure to the required amount. v

For instance, when the faucet 12 is open and the pressure is reducedin the tank 11 belowsuch a given pressure such as twenty pounds then the diaphragm switch will be valve shifted to close the circuitfor starting the 7 pump motor and pump and the valve member will shift to deliver the water through the pump from the cistern to build up the pressure again until the pressure achieves such amount as to throw the diaphragm switch open. I

The valvemember consists of the stem 23 having the pistons 24, 25, 26 and 27. A by-passpassageway proceeds from the top of the casing upon the piston 24 and the cistern outlet pipe 10. This passageway is designated 28. A similar by-pass passageway passes from the end of the casing to the well outlet pipe 13 such passageway being designated 29.

This valvestem is provided with a notch 30 in which works a finger 31 mounted on a cross shaft 32 which passes through the wall of the casing 3, the casing having enlarged at this point and designated 33. This finger 31 carried on the shaft 32 moves with the laminated armature20, the laminations of which are held together by the bolts 34. This laminated armature is insulated from the shaft 32. Thus as the armature rocks from side to side being induced to do so by the proximity of the respective U-shaped magnets which is also insulated from the valve casing 3 which is energized by the solenoid coils 18 or 19, the valve will be positively shifted.v The. initial movement, however, of the valve takes place as described due to the decrease in pressure on one side or the. other, thus placing. the armature 20 in relatively close proximity to one or the other of the Ushaped magnets with the result that the armature is positively moved in engagement with the magnet and the valve is positively shifted, thus preventing any failure of the valve to operate. It is also positively held.

It will be noted that in practice when the water decreases in pressure for instance in the pressure line 10 and therefore the pressure decreases behind the piston 24: the heavier pressure on the side of the well whichcommunicates with the back of the piston 27 will serve to shift the valve member to the upper position. The pressure therefore decreasing in the pump line allowing the diaphragm switch to operate will closethe pump switch and start the motor operating delivering water through the cistern pipe 2 through the pump line 6 ot the pump throughthe passageway through the return from the pump 9, through the passageway 35 into the cistern pipe 10, while if the decrease in pressure is on the well side the valve member is shifted to the lowermost position and the pump will draw water through the well inlet 5, the passageway 36 into the valve casing, through the inlet pump line 6, through the pump, through the pump re turn line 9, through the passageway 37 into the well exit line 13. The faucets 38 are used. as openings for thewellwater lines in the house.

With special reference to the diaphragm switch, it will be understood that the source of current is supplied by the two cables 39 and 40 through the conduit 4-1, switch 42', conduit 43 to thediaph-ragm switch 15.

This switch, as will be seen in. Figure 3, consists of a base 14: and a pressure chamber 45, a diaphragm 46 and a passagewayoperated by the diaphragm designated 47. This diaphragmworks against the spring 18, against the upper end of the housing at 49'. This diaphragm passageway 50 operates a switch arm 51 pivoted on the frame 52-. The switch arm has a transverse rod 53 working in a jaw 5% on the plunger 50.

The outer end of this switch arm 51 engages with a U-shaped member 55 from which it rocks to throw the lever 56 from open to closed position. This lever carries the switch linger 57 which makes contact with the stationary block 58 carried on the switch. The lever 56 is pivoted at 56 on this frame.

The pipe 59 leads from the circulation line of the pump to the diaphragm. cha1nber 45 so that a fluctuation in pressure in a circulation line will cause the switch to open or close. The wires 16 and 17 are respectively connected to the armature 20 and coils 19 and 18. The wires 16 and 17 are connected to motor wires 60 and 61. The type of casing and the manner of connection is of no in'iportance, nor is it important that a particular type of switch be employed, as I do not desire to confine myself to the mere details of the mechanism.

It will be noted that wires 16 and 17 are not supplied with current until the switchcloses.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:.

1. In a hydraulic system, two sources of supply of fluid, a valve adapted to alternately permit of the use of said supplies, a common pump for drawing supply from either source, outlet means for each supply from the valve adapted to be supplied through the valve from a common source of supply, a diaphragm switch adapted to oper ate when the pressure in either supply de creases below a given point, said valve. being so: arranged asto shift to permit of the pump. drawing a supply for, the line having the least pressure, and means adapted to positively shift said valve member in the desired direction.

2. In a hydraulic system, two sources of supply of fluid, a valve adapted to'alternately permit of the use of said supplies, a common pump for drawing supply from either source,- outlet means for each supply from the valve adapted to be supplied through the valve from a common source of supply, a diaphragm switch adapted to operate when. the pressure in either supply decreases below a given point, said valve being so arranged as to shift to permit of the pump drawing a supply for the line having the least pressure, means adapted to positively shift said. valve .member in the desired direction, saidmeans consisting of electrically operated mechanism connected with the diaphragm switch which is energized upon the closing of the switch and the operating of the pump,an.d means to connect electrically said switch and electrically energized means.

3. In a hydraulic system, a valve, a valve member having aplurality of 'pistons, a pump connected to said valve, exit lines connected to said valve, inlet lines from different sources of supply of fluid: connected to said *alve, said parts and valve member bemovement otthe valve iri'embi "and valve means in a given direction,

4. In a hydraulic system, a valve, a valve member having a plurality of pistons, a-

, pump connected to said valve, ex'it'lines con nected to said valve,'inlet lines from diflerent. sources of supply of fluid connected to said valye, said parts and valve member being so arranged that in alternate positions oi the valve member-the common pump wil pump fluid from either of said sources of supply to the desired exit line, a diaphragm switch connected in the pump line, a. by-pass passageway in the valve leading from each exit line to the end of the valve behind the pistons on the respective ends of the valve, a member pivotally engaging said valve member, an arm connected therewith on the outside of the casing of the valve, said arm being adapted to be electrically attracted to energize magnets on either side thereof, means connected with the diaphragm switch for energizing coils, whereby when the pressure decreases on one side the valve, the arm will be shifted toward the solenoids and finally positioned by the direction of the arm and the magnet by one another.

5. In a hydraulic system, a valve, a valve member having a plurality of pistons, a pump connected to said valve, exit lines connected to said valve, inlet lines from diflerent sources of supply of fluid connected to said valve, said parts and valve member being so arranged that in alternate positions of the valve member the common pump will pump fluid from either of said sources of supply to the desired exit lines, a diaphragm switch connected in the pump lines, a bypass passageway in the valve leading from each exit line to the end of the valve behind the pistons on the respective ends of the valve, a member pivotally engaging said valve member, an arm connected therewith on the outside of the casing of the valve, said arm being adapted to be electrically attracted to energize magnets on either side thereof, means connected with the diaphragm switch for energizing coils, whereby when the pressure decreases on one side the valve will be shifted with its arm and finally positioned by the direction of the arm and the magnet by one another, and storage tanks associated with the out-going lines for each supply.

6. In a hydraulic system, a valve casing, inlet lines from two sources of supply, an

exit line to a pump, a pump, a return line from the pump to the, valve casing, exit lines forthe respectivelines of fluid from the easing, a valve stem in said casing, aplurality of pistons onjsai'd stemadapted to alternately close predetermined ports to insurethe circulation through the pump from a given source of supply and the delivery of such fluid through the predetermined line for that type of fluid, by-pass passageways from behind the end pistons to the respective exit lines, a communicating'line from the pump to a diaphragm switch, a diaphragm switch, electrical connections ='from said switch to energizing solenoids, U-shaped magnets carrying said solenoids, a lever adapted to be attracted by said respective magnets connected to said valve stem to shift the valve lstem, whereby upon the decrease in-pressure in oneline on the exit side, the. diaphragm switch will be closed, the unbalaneing in pressure will shift the valve stem and pistons and the valve will be finally shifted by the direction of the magnet for the valve shifting lever to insure the delivery of the kind of fluid desired for the low pressure exit line.

7 In a hydraulic system, a valve casing, inlet lines from two sources of supply, an exit line to a pump, a'pump, a return line from the pump to the valve casing, exit lines for the respective lines of fluid from the casing, a valve stem in said casing, a plurality of pistons on said stem adapted to alternately close predetermined ports to insure the circulation through the pump from a givensource of supply and the delivery of such fluid through the predetermined line for that type of fluid, by-pass passageways from behind the end pistons to the respective exit lines, a communicating line from the pump to a diaphragm switch, a diaphragnrswitch, electrical connections from said switch to energizing solenoids, U- shaped magnets carrying said solenoids, a lever adapted to be attracted by said respective magnets connected to said valve stem to shift the valve stem, whereby upon the decrease in pressure in one line on the exit side the diaphragm switch will be closed, the unbalaneing in pressure will shift the valve stem and pistons and the valve will be finally shifted by the direction of the magnet ,for the valve shifting lever to insure the delivery of the kind of fluid desired for the low pressure exit line, said U-shaped magnets having their ends tilted at an angle with the operating lever therebetween, said lever consisting of a plurality of laminations, the U-shaped magnets being carried on a bracket on the upper end of the casing of the valve.

8. In a hydraulic system, a valve casing,

from thepumpto-the valve casing, exitli-nes for the respectivel-ines oii'fluid from. the case ing, a valvestein in said casing, a plurality. of pistons on said stein adapted to alternate-I ly close predetermined ports. to insure: the

circulation throughthe pump from a given source of supply and the delivery of, such fluid through the predetermined line for that type; of fluid',. lay-pass passageways. from behind the end pistons to the respective exit lines, a communicating line from the pump to. a diaphragm switch, a dia-. phragm switch, electrical connections. from said switch to energizing solenoids, U

shaped magnets carrying said solenoids, a

lever adapted to be attracted by said respective nagnetsv connected to said valve stein-tov shift the valve stem, whereby upon thedecrease in pressure in one Line on the exit side the diaphragm switch will be c osed,.fli j nbal ncina n p essur lfi lfif the. valve. stem, and pistons and the valve 'will befinallv shifted the. direction of" the magnet for the valve shiitinglever to in sure. the delivery ofjthe kind: and amount. of fluid desired for the lowpressure exit line, said usshaped n agnetsf havingtheir mils tilted, at an angle with, the operating lever tlle ltebetween, said, leverconsisting of a pluwit y of aminat o s, th uaped'm gnet being carried on a bracket on the upper end of; the casing of the valve, and an enlarged cha nbeir in the valve casing for accommotu-re.

30.5 0 CBOMER 

